Update GitHub Actions + refresh NPM + run npm run format

[Saibamen]

Reduce diff from #245

[Copilot]

Pull request overview

This PR applies code formatting changes by converting indentation from spaces to tabs across the entire web project. The changes are purely cosmetic and do not affect functionality.

Purpose: Reduce diff from a related PR (#245) by standardizing code formatting using npm run format.

Key Changes:

• Converted all indentation from 2 spaces to tabs in TypeScript files
• Converted all indentation from 2 spaces to tabs in Vue component files
• Converted all indentation from 2 spaces to tabs in SCSS files
• Converted all indentation from 2 spaces to tabs in JSON configuration files

Reviewed changes

Copilot reviewed 4 out of 125 changed files in this pull request and generated no comments.

File	Description
All .ts files	TypeScript files reformatted with tab indentation
All .vue files	Vue component files reformatted with tab indentation
All .scss files	SCSS style files reformatted with tab indentation
All .json files	JSON config files reformatted with tab indentation

Note: This is a pure formatting change with no functional modifications. All changes consistently replace 2-space indentation with tab characters across the codebase. No issues were identified.

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